CN212330521U - Hydraulic adjusting center frame stabilizing device for grinding rotating body - Google Patents
Hydraulic adjusting center frame stabilizing device for grinding rotating body Download PDFInfo
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- CN212330521U CN212330521U CN202020813136.5U CN202020813136U CN212330521U CN 212330521 U CN212330521 U CN 212330521U CN 202020813136 U CN202020813136 U CN 202020813136U CN 212330521 U CN212330521 U CN 212330521U
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Abstract
The utility model provides a grinding is hydraulic pressure regulation centre frame stabilising arrangement for revolving body, including last body and lower body, the work piece is located body and lower body central point and puts, goes up body and lower body fixed connection, and lower body below is equipped with the gland, and the gland is fixed in on the grinding machine guide rail through housing screw, go up the body and be equipped with three hydraulic pressure adjusting device of group down on the body, hydraulic pressure adjusting device is including locating this internal case, be equipped with the fine setting lead screw in the case, fine setting lead screw upper end is passed the screw lid and is passed through mounting flange and adjustment button fixed connection, and fine setting lead screw lower extreme is equipped with the oil pocket, and the case is equipped with the work piece bottom and supports stifled, and the work piece supports stifled top and is equipped with the steel ball, and. The utility model discloses an upper and lower body and the inside regulation structure of improvement centre frame, when the precision machining, the alignment precision of the solid of revolution can reach the mu level, makes to the precision machining and has great meaning.
Description
Technical Field
The utility model belongs to the mechanical equipment field, specifically speaking relate to a hydraulic pressure adjusting center frame securing device for grinding turning body.
Background
In the existing center frame used in the grinding field, a body is made of cast iron, but the overall size of the cast body is thinner; the adjusting rod under the adjusting knob is of a polished rod structure, and the adjusting precision of a mechanical adjusting mode is low; the contact part of the revolving body and the revolving body is made of cast iron and hard plastics, the contact surface has poor finish degree, the workpiece is easy to abrade, and the revolving body has poor stability in the processing process. Along with the higher precision of processing products, for example, when grinding slender shafts, because the ratio of the length to the diameter is larger, and the self weight of a workpiece and the grinding force act, the workpiece is easy to bend and deform, so that vibration is generated during processing, the workpiece is ground into a drum shape, the size precision and the surface smoothness of the workpiece are influenced, and the precision of the existing center frame cannot meet the actual requirement.
SUMMERY OF THE UTILITY MODEL
The utility model provides a can improve solid of revolution stability and adjust hydraulic pressure regulation centre frame securing device for grinding solid of revolution of precision has solved the centre frame among the background art and has adjusted the shortcoming that the precision is low, poor stability, and the centre frame centre gripping center is unanimous with the lathe central line coincidence completely, and accurate centering precision and repeated positioning accuracy can all reach at the whole centre gripping within range of grinding centre frame.
The technical scheme of the utility model is realized like this: a hydraulic adjusting center frame stabilizing device for a grinding revolving body comprises an upper body and a lower body, wherein a workpiece is positioned at the center of the upper body and the lower body, the upper body is fixedly connected with the lower body, a gland is arranged below the lower body, the gland is fixed on a grinding machine guide rail through a compression screw, three groups of hydraulic adjusting devices are arranged on the upper body and the lower body, each hydraulic adjusting device comprises a valve core arranged in the upper body, a fine adjustment lead screw is arranged in each valve core, the upper end of each fine adjustment lead screw penetrates through a screw cover and is fixedly connected with an adjusting button through a fixing flange, the lower end of each fine adjustment lead screw is provided with an oil cavity, the lowest end of each valve core is provided with a workpiece supporting plug, a steel ball is arranged above each;
preferably, one side of the valve core is provided with a locking groove;
preferably, the adjusting button and the fixed flange are provided with scales.
The utility model has the advantages that: the utility model discloses radial support solid of revolution in abrasive machining, and do not have relative axial displacement with the work piece, be used for confirming the centre of rotation of the solid of revolution to guarantee that it does not change because of factors such as atress, vibration in the course of working, the rigidity of multiplicable solid of revolution reduces bending deformation, the weight that unloading head, tail top bore simultaneously makes two top only play centering axial fixity effect, is fit for requiring the high solid of revolution part of machining precision grade. By improving the upper body, the lower body and the internal adjusting structure of the center frame, the alignment precision of the revolving body can reach the mu level during precision machining, and the centering device has great significance for precision machining and manufacturing.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the hydraulic adjusting device of the present invention.
Description of the parts: 1. the device comprises an adjusting button, 2, a fixing flange, 3, a fine adjustment screw rod, 4, a screw cap, 5, a valve core, 6, a plug, 7, an upper body, 8, a lower body, 9, a workpiece supporting plug, 10, a clamping knob, 11, a gland, 12, a compression screw, 13, a locking groove, 14, an oil cavity, 15 and a steel ball.
Detailed Description
For a better understanding and appreciation of the invention, it will be further described in connection with the accompanying drawings: a hydraulic adjusting center frame stabilizing device for a grinding rotary body comprises an upper body 7 and a lower body 8, wherein a workpiece is positioned at the center of the upper body 7 and the lower body 8, the upper body 7 is fixedly connected with the lower body 8, a gland 11 is arranged below the lower body 8, the gland 11 is fixed on a grinding machine guide rail 16 through a compression screw 12, three groups of hydraulic adjusting devices are arranged on the upper body 7 and the lower body 8, each hydraulic adjusting device comprises a valve core 5 arranged in the corresponding body, a locking groove 13 is formed in one side of the valve core 5, a fine adjustment screw rod 3 is arranged in the valve core 5, the upper end of the fine adjustment screw rod 3 penetrates through a screw cover 4 and is fixedly connected with an adjusting button 1 through a fixing flange 2, an oil cavity 14 is arranged at the lower end of the fine adjustment screw rod 3, a workpiece supporting plug 9 is arranged at the lowest end of the valve core 5, a steel ball 15; the adjusting button 1 and the fixed flange 2 are provided with scales.
Go up body 7 and 8 castings of lower body and select the casting of more high-quality size structure, tightly lock on the grinding machine guide rail through gland 11 and housing screw 12, the holistic stability of centre frame has been guaranteed to the body that stabilizes more and inseparable laminating. Six parts, namely an adjusting button 1, a fixed flange 2, a fine adjustment screw rod 3, a screw cap 4, a valve core 5 and a plug 6, are assembled into a group of adjusting device, the adjusting device moves inside and outside through the adjusting button 1, scales (which float up and down for 0.5mm, 50 parts and the like after rotating for a circle) are engraved on two parts, namely the adjusting button 1 and the fixed flange 2, so that the adjusting precision of 0.01mm is achieved, and the three groups of adjusting devices can enable the supporting part of a workpiece to achieve the mu-level jumping precision through common adjustment;
the vertical movement of the front end workpiece supporting plug 9 is adjusted through the pressing and releasing of the middle oil cavity 14, after alignment, the traditional mechanical adjustment is replaced by hydraulic adjustment through locking a screw locking position, and the rotation precision and the stability of the revolving body are greatly improved through the adjusting device; the workpiece supporting plug 9 is made of a superhard material, and is polished and polished by 2000-mesh abrasive paper before installation, so that the workpiece is guaranteed to be stable and not easy to scratch in the rotation process due to the ultrahigh hardness and the ultrahigh surface finish.
The hydraulic center frame stabilizing device obviously improves the rotation precision of the revolving body in precision machining, particularly, can ensure that the size precision and the finish degree of the excircle are not damaged on the premise of providing high rotation precision and stability for a workpiece of which the excircle is precisely machined and needs to be machined with an inner hole, and has particularly important significance.
Claims (3)
1. A hydraulic adjusting center frame stabilizing device for a grinding rotary body comprises an upper body (7) and a lower body (8), wherein a workpiece is positioned at the center of the upper body (7) and the lower body (8), the upper body (7) is fixedly connected with the lower body (8), a gland (11) is arranged below the lower body (8), the gland (11) is fixed on a grinding machine guide rail (16) through a compression screw (12), the hydraulic adjusting device is characterized in that three groups of hydraulic adjusting devices are arranged on the upper body (7) and the lower body (8), the hydraulic adjusting device comprises a valve core (5) arranged in the main body, a fine adjusting screw rod (3) is arranged in the valve core (5), the upper end of the fine adjusting screw rod (3) penetrates through a screw cover (4) and is fixedly connected with an adjusting button (1) through a fixing flange (2), an oil cavity (14) is arranged at the lower end of the fine adjusting screw rod (3), and a workpiece supporting plug, a steel ball (15) is arranged above the workpiece supporting plug (9), the steel ball (15) is positioned in an oil cavity below the fine adjustment screw rod (3), and a plug (6) is arranged on the workpiece supporting plug (9).
2. A hydraulic centre rest stabilizer for grinding swivels according to claim 1, characterised in that the spool (5) is provided with a locking groove (13) on one side.
3. A hydraulic adjustment steady apparatus for grinding swivels as claimed in claim 1 or 2, characterized in that the adjustment knob (1) and the fixed flange (2) are provided with a scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020813136.5U CN212330521U (en) | 2020-05-15 | 2020-05-15 | Hydraulic adjusting center frame stabilizing device for grinding rotating body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020813136.5U CN212330521U (en) | 2020-05-15 | 2020-05-15 | Hydraulic adjusting center frame stabilizing device for grinding rotating body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212330521U true CN212330521U (en) | 2021-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020813136.5U Active CN212330521U (en) | 2020-05-15 | 2020-05-15 | Hydraulic adjusting center frame stabilizing device for grinding rotating body |
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| Country | Link |
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| CN (1) | CN212330521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113681468A (en) * | 2021-09-13 | 2021-11-23 | 胡功明 | High-precision center frame of numerically controlled grinder |
-
2020
- 2020-05-15 CN CN202020813136.5U patent/CN212330521U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113681468A (en) * | 2021-09-13 | 2021-11-23 | 胡功明 | High-precision center frame of numerically controlled grinder |
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